Will the swing circle in VMS always be larger than what is plotted on the paper chart?

The swing circle in a Vessel Management System (VMS) is a representation of the area around a vessel that outlines the maximum reach of the vessel when it swings at anchor, based on its length and the length of the anchor rode. When using VMS, the dimensions and calculations of the swing circle take into account the actual position, size, and environmental conditions affecting the vessel, such as wind, current, and drift.

On a paper chart, the swing circle may be plotted based on more simplified or generalized assumptions, which might not always reflect the specific conditions affecting the vessel at that moment. Because of this, there are instances when the swing circle as displayed on the paper chart could be smaller than the dynamic swing circle calculated and displayed by the VMS, especially under changing conditions or with differing variables like the amount of anchor chain deployed.

Thus, the assertion that the swing circle in VMS will always be larger than what is plotted on the paper chart is inaccurate. The VMS is capable of providing a more precise measurement considering real-time data and vessel dynamics. Therefore, the statement indicating that it is false allows for the understanding that there are circumstances under which the swing circle on paper might not accurately represent the true dynamics of the vessel's movement.